Oculist&#39;s testing-frame.



C. WEIGEL.

OCULISTS TESTING FRAME. APPLICATION FILED MAY 25, ISM-RENEWED JAN.28.1916.

1,243,466. Patented Oct. 16, 1917.

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UNTTED STATES PATENT UFFT TE.

CHARLES WEIGEL, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR OF ONE-HALF TO JOHNA. L. WALMAN, OF MINNEAPOLIS, MINNESOTA.

OGULISTS TESTING-FRAME.

1,2-13A6ti.

Application filed May 25, 1915, Serial No. 30,260.

To (4% whom it may concern:

Be it known that 1, C ARLES l VEIGEL, citizen of the United States,resident of Minneapolis, county of Hennepin, State of Minnesota, haveinvented certain new and useful Improvements in Oculists Testing-Frames,of which the following is a specification.

My invention relates to testing or trial frames for use of oculists infitting glasses. The object of my invention is to provide improved meansfor supporting the bow or temple on the head and ears without thenecessity of extending the bow downwardly back of the ears, as usual indevices of this kind.

A further object is to provide a frame in which the head or car prongsare adjustable to readily adapt the device in testing the eyes ofdifferent persons.

The invention consists generally in various constructions andcombinations, all as hereinafter described and particularly pointed outin the claims.

In the accompanying drawings forming part of this specification,

Figure 1 illustrates an outside view of an extension bow or templeembodying my invention,

Fig. 2 is a top view of the same,

Fig. 3 is an outside view illustrating a modified construction,

Fig. a is a top view of the same,

Fig. 5 is an inside view of the slide on which the ear prongs aremounted,

F ig. 6 illustrates the slide removed from the bow.

In the drawing, 2 represents one section of a bow, having a hinge memberat 3 for connection to the testing frame, and A is the other member ofthe bow, having its end lapping by the end of the bow section 2 andsecured thereto by suitable clips 5 having clamping screws 6. Thisportion of the device is now in general use and I make no claim to itherein.

The outer end of the bow section 4 has a downwardly turned portion 7terminating in a head 8 having a button or disk 9 of cork or similarmaterial thereon and an oppositely arranged prong 10 is similarlyequipped and cooperates with the prong 7 to straddle the top of the earand hold the testing frame in place on the nose. The section 4 is alsoprovided with arms 11 and Specification of Letters Patent.

Patented Oct. 16, 1917.

Renewed January 28, 1916. Serial No. 74,857.

12 having disks tobear on the head, said arms being of spring materialso that, when desired, pressure may be obtained to aid in holding thebows against accidental displacement.

The relative position of thes prongs and arms is indicated in Fig. 2,and obviously any desired adjustment may be obtained by bending themslightly, inwardly or outwardly, and by moving the sections of the bowback and forth upon one another, the proper adjustment of the spectacleframe may be obtained.

In Fig. 3 a modified construction is shown, which consists in providinga single bow or temple 13 having a slide 1% thereon provided with aspring tongue 15 to bear on the bow and hold the slide againstaccidental movement, said slide also having downwardly extending prongs16 to straddle the ear and an inwardly projecting prong 17 to bear onthe head. By moving this slide back and forth the oculist can readilyadjust the prongs to fit the ear of the person whose eyes are beingtested. These prongs may, of course, be equipped with the yielding disks9 of suitable material, if preferred, and there may be two of the prongsor arms to bear on the head instead of one, as shown. The bows will begraduated, as indicated, for convenience of adjustment, and it will, ofcourse, be understood that each bow is equipped in the same manner andthat these bows willbe attached to the usual testing frame.

I prefer to provide a connection between the bow or temple 13 and theframe, (not shown) consisting of a plate 18 pivoted at 19 on the templeand having a curved slot 20 therein to receive a thumb screw 21 whichextends through the slot and is tapped into the temple. By looseningthis screw the plate 18 can be tilted up or down to adjust the temple orbow with respect to the frame.

I claim as my invention:

1. A testing frame bow having depending prongs adapted to straddle thetop of the ear, for the purpose specified.

2. A testing frame bow having prongs to straddle the ear and a yieldingarm to bear on the side of the head.

3. A testing frame bow and a slide mounted thereon, said slide havingdepending prongs to straddle the ear and bear on the prongs to straddlethe ear.

5. Ah testing frame bow and ed thereon, said slide having dependingprongs to straddlethe ear and mounted to" have aiyielding bearing on theside of the head.

6.- A testing frame boW and a slide: mounted thereon, said slide havinga prong to rest upon the ear and depend in the rear thereof, said slidealso having an arm to bear on the side of the head. V l

7. In combination, Wlth"t testing frame testing franie bon andasliden'iount 5 ed thereon, said slide having depending" v dlingitheear.a slideinou'nthow, a platepi'voted thereon having a curved slot thereinand provided With means for eonnection to the frame, a thumb screw fitting in-said slot and tapped into said bow, and prongsmountedonsaid bowfor strad- 8. A testing frame bow in combination .ivitha, plate pivotedthereon and having meansforconnection With the frame, said plate. beingmounted to-swing onitspivot to change the angle of the bow with respectto the frame, means for locking said plate in its'adjusted positions,and prongs mounted onsaid bow for straddling the ear.

' in witness whereof, I have hereunto'set my hand this 14th 'day of May1915.

. a 5 CHARLES l VEIGEL.

Gopies oi this patent may be obtained for five cents each, by addressingthe Commissioner of Patents Wa'shingten, I 03?

